But one boy in China can solve three -- while juggling them -- in 5 minutes, 6 seconds. 12-year-old Que Jianyu demonstrated this talent last December on the set of Dream of China, a Chinese reality talent show, local news and entertainment site Shanghaiist reported on its Facebook page on Tuesday.Apr 10, 2018People who are overweight or obese are at a greater risk for knee problems. For every pound that you are overweight, your knee must absorb an extra 4 poundsTrusted Source of pressure when you walk, run, or climb stairs.